Frequencies for first 10,000 rows of dose_freq variable in drug2016q4 dataset :

   Code for |
  Frequency |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,089       60.89       60.89
     /cycle |          4        0.04       60.93
        /hr |          4        0.04       60.97
       /min |          5        0.05       61.02
     /month |         75        0.75       61.77
        /wk |        269        2.69       64.46
        /yr |          3        0.03       64.49
         1X |          5        0.05       64.54
        BID |        556        5.56       70.10
        BIW |         24        0.24       70.34
       Q12H |         32        0.32       70.66
        Q3H |          2        0.02       70.68
        Q3W |         74        0.74       71.42
        Q4H |          8        0.08       71.50
        Q6H |          6        0.06       71.56
        Q8H |          8        0.08       71.64
         QD |      2,413       24.13       95.77
        QID |         41        0.41       96.18
        QOD |         15        0.15       96.33
        QOW |        194        1.94       98.27
        TID |        165        1.65       99.92
        TIW |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Sep 2017